Carburetor with gas preheating function

Abstract

The utility model relates to the technical field of carburetors, in particular to a carburetor with a gas preheating function, which comprises a carburetor body, and the carburetor body comprises a gas inlet channel and a gas outlet channel. The air inlet channel further comprises an air inlet, a connecting part is arranged on the periphery of the air inlet channel, the connecting part and the air inlet are located on the same horizontal plane, and the horizontal plane is a matching face. A heat insulation layer is arranged on the inner wall of the air inlet channel, a heating layer is arranged on the inner side wall of the heat insulation layer, and a limiting ring is arranged on the matching surface; a threading hole is formed in the matching surface, the heating layer further comprises an electric wire, and the electric wire penetrates through the limiting ring and the threading hole to be connected with the outside; the heat insulation layer is arranged on the inner wall of the air inlet channel, the heating layer is arranged on the inner wall of the heat insulation layer, heat insulation can be achieved through the heat insulation layer, heat conduction and heat dissipation are avoided, the heating layer can be limited through the limiting ring, the heating layer can also limit the heat insulation layer, the fixing effect is achieved, and the control effect is guaranteed through direct connection of the electric wire; and the accurate preheating effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of carburetors, in particular to a carburetors with gas preheating function. Background Art

[0002] The fuel supply device of the engine is divided into two types according to the type of fuel used: gasoline fuel supply system and diesel fuel supply system; and the gasoline fuel supply system is divided into two types: carburetor type and fuel injection type. The main function of the fuel supply system is to supply pure air into the cylinder, and according to the working needs of the engine, send a certain amount of fuel into the cylinder on time to adjust the engine output power and speed, and finally discharge the exhaust gas after combustion out of the cylinder.

[0003] In the carburetor-type fuel supply device, gasoline is atomized and mixed with air to form a combustible mixture through a carburetor, and then sent to each cylinder. During use, the carburetor on the carburetor-type fuel supply device needs to be connected to the external air through a preheating pipe, but the existing preheating pipes on the market are mostly sleeved on the outer periphery of the carburetor intake channel, and heat can only be achieved through the carburetor body. In addition, the carburetor body is mostly made of metal, which can easily lead to heat loss during use, resulting in poor preheating effect. If the waste heat of the engine is used for heating, the pipeline layout is complicated, and the carburetor itself is compact and very inconvenient to install. Therefore, a carburetor with gas preheating that can achieve better preheating effect and avoid excessive complexity of the carburetor pipeline is needed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is to provide a carburetor with gas preheating.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A carburetor with gas preheating, comprising a carburetor body, the carburetor body comprising an airflow channel and a plunger throttle, the plunger throttle dividing the airflow channel into two parts, an air inlet channel and an air outlet channel; the air inlet channel also comprises an air inlet, a connecting part covering the outside of the air inlet channel is arranged on the outer periphery of one end of the air inlet channel away from the air outlet, a side of the connecting part away from the air outlet is located on the same horizontal plane as the air inlet, and the horizontal plane is a mating surface;

[0007] The inner wall of the air inlet passage is provided with a heat insulation layer and is aligned with the edge of the air inlet, the inner side wall of the heat insulation layer is provided with a heating layer, a limiting ring is provided on the matching surface, a through hole is provided in the middle of the limiting ring, the through hole has the same inner diameter as the heating layer and is coaxially arranged, and the heating layer and the limiting ring are arranged integrally;

[0008] The mating surface is provided with a threading hole, and the heating layer also includes an electric wire, and the electric wire passes through the limiting ring and the threading hole to connect with the outside world.

[0009] Preferably, the thermal insulation layer is aerogel; the thermal insulation layer is integrated with the limiting ring and the heating layer.

[0010] Preferably, the inner wall of the air inlet passage is polished.

[0011] Preferably, the heating layer is a graphite heating film or a PTC heating film.

[0012] Preferably, the shape of the limiting ring is the same as the shape of the matching surface.

[0013] Preferably, the limiting ring is made of elastic material.

[0014] Preferably, a plurality of weight-reducing grooves are also provided on the mating surface.

[0015] Preferably, the threading hole is located in the weight-reducing groove.

[0016] Preferably, a sealing rubber block covering the electric wire is arranged in the corresponding weight-reducing groove in the wire threading hole.

[0017] The beneficial effects of the utility model are as follows: by arranging a heat insulating layer on the inner wall of the intake passage and a heating layer on the inner wall of the heat insulating layer, heat insulation can be performed by the heat insulating layer, so that the heat generated by the heating layer during heating will not be dissipated by heat conduction by the carburetor itself, and the problem of poor external heating effect is avoided. In addition, by setting a limiting ring, the heating layer can be limited by connecting the connecting part with other components during use. At the same time, the heating layer can limit the heat insulating layer, thereby playing a fixing role. The wires of the heating layer pass through the threading holes on the connecting part, and the direct connection of the wires ensures the control effect, thereby meeting the effect of precise preheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure shows a structural schematic diagram of a carburetor with gas preheating according to a specific embodiment of the utility model;

[0019] Figure 2 The figure shows a structural disassembly diagram of a carburetor with gas preheating according to a specific embodiment of the utility model;

[0020] Figure 3 Shown Figure 2 Another angle view;

[0021] Explanation of reference numerals: 1. Carburetor body; 11. Intake passage; 12. Exhaust passage; 13. Connecting part; 14. Matching surface; 15. Insulation layer; 16. Heating layer; 17. Limiting ring; 18. Threading hole; 19. Weight reduction groove. DETAILED DESCRIPTION

[0022] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0023] Please refer to Figures 1 to 3 As shown, a carburetor with gas preheating of the utility model comprises a carburetor body 1, wherein the carburetor body 1 comprises an airflow channel and a plunger throttle, wherein the plunger throttle divides the airflow channel into two parts, namely, an air intake channel 11 and an air outlet channel 12; the air intake channel 11 also comprises an air intake port, and a connecting portion 13 covering the outside of the air intake channel 11 is arranged on the outer periphery of one end of the air intake channel 11 away from the air outlet channel 12, wherein a surface of the connecting portion 13 away from the air outlet channel 12 is located on the same horizontal plane as the air intake port, and the horizontal plane is a mating surface 14;

[0024] The inner wall of the air inlet passage 11 is provided with a heat insulation layer 15 and is aligned with the edge of the air inlet. The inner wall of the heat insulation layer 15 is provided with a heating layer 16. A limit ring 17 is provided on the matching surface 14. The middle part of the limit ring 17 has a through hole. The through hole has the same inner diameter as the heating layer 16 and is coaxially arranged. The heating layer 16 and the limit ring 17 are integrally arranged.

[0025] The mating surface 14 is provided with a threading hole 18 , and the heating layer 16 also includes an electric wire, which passes through a limiting ring 17 and the threading hole 18 to connect with the outside world.

[0026] From the above description, it can be known that by arranging a heat insulating layer 15 on the inner wall of the intake passage 11 and arranging a heating layer 16 on the inner wall of the heat insulating layer 15, heat insulation can be performed through the heat insulating layer 15, so that the heat generated by the heating layer 16 during heating will not be dissipated by heat conduction by the carburetor itself, and the problem of poor external heating effect is avoided. In addition, by the setting of the limiting ring 17, the heating layer 16 can be limited by connecting the connecting part 13 with other components during use. At the same time, the heating layer 16 can also limit the heat insulating layer 15, thereby playing a fixing role. The wires of the heating layer 16 pass through the threading holes 18 on the connecting part 13, and the direct connection of the wires ensures the control effect, thereby satisfying the effect of precise preheating.

[0027] Furthermore, the thermal insulation layer 15 is aerogel; the thermal insulation layer 15 is integrated with the limiting ring 17 and the heating layer 16 .

[0028] From the above description, it can be seen that the integrated design of the heat insulation layer 15, the limiting ring 17 and the heating layer 16 can reduce the difficulty of subsequent installation; and the aerogel can achieve a good heat insulation effect even when it is very thin.

[0029] Furthermore, the inner wall of the air intake passage 11 is polished.

[0030] It can be seen from the above description that the polished inner wall can reduce friction and facilitate the installation of the thermal insulation layer 15.

[0031] Furthermore, the heating layer 16 is a graphite heating film or a PTC heating film.

[0032] From the above description, it can be seen that by adopting a graphite heating film or a PTC heating film, the thickness can be reduced to avoid affecting the air intake.

[0033] Furthermore, the shape of the limiting ring 17 is the same as that of the matching surface 14 .

[0034] It can be seen from the above description that the limiting ring 17 can be used as a sealing ring by using the matching surface 14 and the limiting ring 17 with the same shape.

[0035] Furthermore, the limiting ring 17 is made of elastic material.

[0036] Furthermore, a plurality of weight-reducing grooves 19 are provided on the mating surface 14 .

[0037] It can be seen from the above description that weight reduction can be achieved by providing the weight reduction groove 19 .

[0038] Furthermore, the threading hole 18 is located in the weight-reducing groove 19 .

[0039] It can be seen from the above description that by arranging the threading hole 18 in the weight-reducing groove 19 , the difficulty of processing the threading hole 18 can be reduced.

[0040] Furthermore, a sealing rubber block covering the electric wire is arranged in the corresponding weight-reducing groove 19 in the wire threading hole 18 .

[0041] From the above description, it can be seen that the sealing rubber block can be wrapped around the wire to seal the wire threading hole 18 while preventing the wire from being broken by friction with the wire threading hole 18, or the breaking point caused by pulling occurs between the wire and the limiting ring 17.

[0042] Embodiment 1

[0043] A carburetor with gas preheating, comprising a carburetor body 1, the carburetor body 1 comprising an airflow channel and a plunger throttle, the plunger throttle dividing the airflow channel into two parts, an air intake channel 11 and an air outlet channel 12; the air intake channel 11 also comprises an air inlet, a connecting portion 13 covering the outside of the air intake channel 11 is arranged on the outer periphery of one end of the air intake channel 11 away from the air outlet channel 12, a surface of the connecting portion 13 away from the air outlet channel 12 is located on the same horizontal plane as the air intake, and the horizontal plane is a mating surface 14;

[0044] The inner wall of the air inlet passage 11 is provided with a heat insulation layer 15 and is aligned with the edge of the air inlet. The inner wall of the heat insulation layer 15 is provided with a heating layer 16. A limit ring 17 is provided on the matching surface 14. The middle part of the limit ring 17 has a through hole. The through hole has the same inner diameter as the heating layer 16 and is coaxially arranged. The heating layer 16 and the limit ring 17 are integrally arranged.

[0045] The mating surface 14 is provided with a threading hole 18 , and the heating layer 16 also includes an electric wire, which passes through a limiting ring 17 and the threading hole 18 to connect with the outside world.

[0046] The heat insulation layer 15 is aerogel; the heat insulation layer 15 is integrated with the limiting ring 17 and the heating layer 16 .

[0047] The inner wall of the air intake passage 11 is polished.

[0048] The heating layer 16 is a PTC heating film.

[0049] The shape of the limiting ring 17 is the same as that of the matching surface 14 .

[0050] The limiting ring 17 is made of elastic material, such as elastic plastic.

[0051] The mating surface 14 is also provided with a plurality of weight-reducing grooves 19 .

[0052] The threading hole 18 is located in the weight-reducing groove 19 .

[0053] The corresponding weight-reducing groove 19 in the threading hole 18 is provided with a sealing rubber block covering the electric wire.

[0054] Embodiment 2

[0055] A carburetor with gas preheating, comprising a carburetor body 1, the carburetor body 1 comprising an airflow channel and a plunger throttle, the plunger throttle dividing the airflow channel into two parts, an air intake channel 11 and an air outlet channel 12; the air intake channel 11 also comprises an air inlet, a connecting portion 13 covering the outside of the air intake channel 11 is arranged on the outer periphery of one end of the air intake channel 11 away from the air outlet channel 12, a surface of the connecting portion 13 away from the air outlet channel 12 is located on the same horizontal plane as the air intake, and the horizontal plane is a mating surface 14;

[0056] The inner wall of the air inlet passage 11 is provided with a heat insulation layer 15 and is aligned with the edge of the air inlet. The inner wall of the heat insulation layer 15 is provided with a heating layer 16. A limit ring 17 is provided on the matching surface 14. The middle part of the limit ring 17 has a through hole. The through hole has the same inner diameter as the heating layer 16 and is coaxially arranged. The heating layer 16 and the limit ring 17 are integrally arranged.

[0057] The mating surface 14 is provided with a threading hole 18 , and the heating layer 16 also includes an electric wire, which passes through a limiting ring 17 and the threading hole 18 to connect with the outside world.

[0058] The heat insulation layer 15 is aerogel; the heat insulation layer 15 is integrated with the limiting ring 17 and the heating layer 16 .

[0059] The inner wall of the air intake passage 11 is polished.

[0060] The heating layer 16 is a graphite heating film.

[0061] The shape of the limiting ring 17 is the same as that of the matching surface 14 .

[0062] The limiting ring 17 is made of elastic material, such as rubber.

[0063] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A carburetor with gas preheating, characterized in that: The carburetor comprises a carburetor body, the carburetor body comprises an airflow channel and a plunger throttle, the plunger throttle divides the airflow channel into an air inlet channel and an air outlet channel; the air inlet channel also comprises an air inlet, a connecting portion covering the air inlet channel is arranged on the outer periphery of one end of the air inlet channel away from the air outlet, a side of the connecting portion away from the air outlet is located on the same horizontal plane as the air inlet, and the horizontal plane is a mating surface; The inner wall of the air inlet passage is provided with a heat insulation layer and is aligned with the edge of the air inlet, the inner side wall of the heat insulation layer is provided with a heating layer, a limiting ring is provided on the matching surface, a through hole is provided in the middle of the limiting ring, the through hole has the same inner diameter as the heating layer and is coaxially arranged, and the heating layer and the limiting ring are arranged integrally; The mating surface is provided with a threading hole, and the heating layer also includes an electric wire, and the electric wire passes through the limiting ring and the threading hole to connect with the outside world.

2. The carburetor with gas preheating according to claim 1, characterized in that The heat insulation layer is aerogel; the heat insulation layer is integrated with the limiting ring and the heating layer.

3. The carburetor with gas preheating according to claim 2, characterized in that The inner wall of the air intake passage is polished.

4. The carburetor with gas preheating according to claim 1, characterized in that The heating layer is a graphite heating film or a PTC heating film.

5. The carburetor with gas preheating according to claim 1, characterized in that The shape of the limiting ring is the same as that of the matching surface.

6. The carburetor with gas preheating according to claim 1, characterized in that The limiting ring is made of elastic material.

7. The carburetor with gas preheating according to claim 1, characterized in that The matching surface is also provided with a plurality of weight-reducing grooves.

8. The carburetor with gas preheating according to claim 7, characterized in that The threading hole is located in the weight-reducing groove.

9. The carburetor with gas preheating according to claim 8, characterized in that A sealing rubber block covering the electric wire is arranged in the corresponding weight-reducing groove in the wire threading hole.

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